Well, the zoo director here is curious about red terrors and Piranhas co-existing in the same exhibit. Would it be possible? And, would the be able to house in another exhibit that has an aro, niger cat, freshwater stingray, and a severum? Please let me know because I am going to be getting a female red terror and the extras are hopefully going to be sent to the zoo if they can co-exist with Piranhas.